An actuator for the tactile vest - a torso-based haptic device

M. Nakamura, L. Jones
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引用次数: 30

Abstract

Our goal is to design a robust, versatile actuator for a Tactile Vest, a wearable device that provides haptic feedback to the torso. The technology we propose to use as the actuator for this device is Nitinol, a shape memory alloy (SMA). Nitinol is capable of generating large stresses and strains, but is small and flexible and able to fit in the thin, dynamic workspace of a vest. In experimental tests conducted on the SMA, a pulse 1 A in amplitude and 1 s in duration produced an average displacement of 3.7 mm and peak pressures about 20 times the touch threshold for the torso. These results indicate promise in using Nitinol to create a torso-based haptic device that can generate a wide range of stimuli, yet is comfortable to the point of being invisible to the user until a stimulus occurs.
触觉背心的致动器——基于躯干的触觉装置
我们的目标是为触觉背心(Tactile Vest)设计一种坚固、通用的致动器,这是一种可穿戴设备,可以向躯干提供触觉反馈。我们建议使用镍钛诺(一种形状记忆合金)作为该装置的致动器。镍钛诺能够产生很大的应力和应变,但体积小,灵活,能够适应背心的薄动态工作空间。在SMA上进行的实验测试中,振幅为1 a、持续时间为1 s的脉冲产生的平均位移为3.7 mm,峰值压力约为躯干触摸阈值的20倍。这些结果表明,使用镍钛诺来制造一种基于躯干的触觉设备是有希望的,这种设备可以产生广泛的刺激,但在刺激发生之前,用户是看不见的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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